NL7304680A - - Google Patents
Info
- Publication number
- NL7304680A NL7304680A NL7304680A NL7304680A NL7304680A NL 7304680 A NL7304680 A NL 7304680A NL 7304680 A NL7304680 A NL 7304680A NL 7304680 A NL7304680 A NL 7304680A NL 7304680 A NL7304680 A NL 7304680A
- Authority
- NL
- Netherlands
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/24—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
- G01P5/245—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave by measuring transit time of acoustical waves
- G01P5/247—Sing-around-systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/66—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
- G01F1/667—Arrangements of transducers for ultrasonic flowmeters; Circuits for operating ultrasonic flowmeters
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Fluid Mechanics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Aviation & Aerospace Engineering (AREA)
- Measuring Volume Flow (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1555472A GB1422791A (en) | 1972-04-04 | 1972-04-04 | Apparatus for indicating fluid flow velocity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7304680A true NL7304680A (https=) | 1973-10-08 |
Family
ID=10061214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7304680A NL7304680A (https=) | 1972-04-04 | 1973-04-04 |
Country Status (4)
| Country | Link |
|---|---|
| DE (1) | DE2316437C2 (https=) |
| FR (1) | FR2179060B1 (https=) |
| GB (1) | GB1422791A (https=) |
| NL (1) | NL7304680A (https=) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1495389A (en) * | 1974-01-31 | 1977-12-14 | Atomic Energy Authority Uk | Apparatus for providing time reference signals |
| DE2517117A1 (de) * | 1975-04-18 | 1976-10-28 | Standard Elektrik Lorenz Ag | Anordnung zum bestimmen der stroemungsgeschwindigkeit von fluessigkeiten und gasen |
| GB1602185A (en) * | 1977-06-03 | 1981-11-11 | Standard Telephones Cables Ltd | Measuring fluid flow |
| US4685093A (en) * | 1985-04-03 | 1987-08-04 | Brookes & Gatehouse Limited | Speed measurement device |
| CN110160505B (zh) * | 2019-05-17 | 2024-08-16 | 张学科 | 一种电压甄别型水文缆道测验信号器 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2826912A (en) * | 1948-12-27 | 1958-03-18 | Kritz Jack | Acoustic velocity measuring system |
| US3420102A (en) * | 1966-12-15 | 1969-01-07 | Lockheed Aircraft Corp | Acoustic fluid metering device |
| US3625057A (en) * | 1967-11-01 | 1971-12-07 | Mitsubishi Electric Corp | Ultrasonic flowmeter |
| FR95411E (fr) * | 1968-02-26 | 1970-11-06 | Realisations Ultrasoniques Sa | Débitmetre a ultra-sons. |
| GB1285175A (en) * | 1968-10-04 | 1972-08-09 | Atomic Energy Authority Uk | Improvements in or relating to apparatus for measuring the flow velocity of fluids |
| US3720105A (en) * | 1971-03-24 | 1973-03-13 | Nusonics | Acoustic flowmeter |
-
1972
- 1972-04-04 GB GB1555472A patent/GB1422791A/en not_active Expired
-
1973
- 1973-04-02 DE DE19732316437 patent/DE2316437C2/de not_active Expired
- 1973-04-03 FR FR7311988A patent/FR2179060B1/fr not_active Expired
- 1973-04-04 NL NL7304680A patent/NL7304680A/xx not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| GB1422791A (en) | 1976-01-28 |
| DE2316437C2 (de) | 1985-03-21 |
| DE2316437A1 (de) | 1973-10-11 |
| FR2179060A1 (https=) | 1973-11-16 |
| FR2179060B1 (https=) | 1976-11-05 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| A85 | Still pending on 85-01-01 | ||
| BV | The patent application has lapsed |